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Bug #38989 Absolute path with slash at beginning doesn't work
Submitted: 2006-09-29 07:45 UTC Modified: 2006-10-05 08:06 UTC
From: info at xboot dot de Assigned: dmitry
Status: Closed Package: Filesystem function related
PHP Version: 5CVS-2006-09-29 (snap) OS: Windows 2003 SP1
Private report: No CVE-ID:
 [2006-09-29 07:45 UTC] info at xboot dot de
Description:
------------
System:
Win 2003 SP1
IIS 6
PHP 5.2.0RC5-dev (29.09.2006)

File operations with slash at the beginning (absolute path) don't work. It doesn't matter which kind of function i use. include(), fopen(), SPL-functions, ... don't work if i pass a filename with a slash at the beginning. If i add the drive letter it works correct.

The same script works fine with PHP 5.1.2.

Reproduce code:
---------------
<?php

echo $_SERVER['PHP_SELF'] . '<br />';

$handle = fopen($_SERVER['PHP_SELF'], "r");

// this is the same file, but it works:
// $handle = fopen("D:\Intranet\path.php", "r");

echo $handle;

?>

Expected result:
----------------
Result with PHP 5.1.2:

/intranet/path.php
Resource id #2

Actual result:
--------------
Result with PHP Version 5.2.0RC5-dev (29.09.2006):

/intranet/path.php

Warning: fopen(/intranet/path.php) [function.fopen]: failed to open stream: No such file or directory in D:\Intranet\path.php on line 5


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 [2006-09-29 08:33 UTC] info at xboot dot de
PHP runs as ISAPI
 [2006-10-04 14:36 UTC] RQuadling at GMail dot com
With the CLI version, if you are in the root of the drive when the script is run then the file is found.

<?php 
// C:\boot.ini
echo file_get_contents('/boot.ini');
// D:\system.pas
echo file_get_contents('/system.pas');
?>

If in C:\, then boot.ini is found. If in my C:\BATCH directory then it is not.

According to System Internals FileMon.exe, filtering boot.ini;system.pas results in ...

14:56:56	php.exe:2004	IRP_MJ_DIRECTORY_CONTROL	C:\BATCH\	NO SUCH FILE	FileBothDirectoryInformation: boot.ini	
14:56:56	php.exe:2004	IRP_MJ_CREATE 	C:\BATCH\boot.ini	NOT FOUND	Options: Open  Access: All	
14:56:56	php.exe:2004	IRP_MJ_DIRECTORY_CONTROL	C:\BATCH\	NO SUCH FILE	FileBothDirectoryInformation: system.pas	
14:56:56	php.exe:2004	IRP_MJ_CREATE 	C:\BATCH\system.pas	NOT FOUND	Options: Open  Access: All	

This removes the issue as relating to ISAPI only (i.e. it is not the webserver getting in the way).

Using php -n at the cli removes any issue with ini file settings.
 [2006-10-05 08:06 UTC] dmitry@php.net
Fixed in CVS HEAD and PHP_5_2.
 
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